281 lines
7.6 KiB
PHP
281 lines
7.6 KiB
PHP
<?php
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP
|
|
*
|
|
* This content is released under the MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 - 2022, CodeIgniter Foundation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* @package CodeIgniter
|
|
* @author EllisLab Dev Team
|
|
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
|
|
* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
|
|
* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
|
|
* @license https://opensource.org/licenses/MIT MIT License
|
|
* @link https://codeigniter.com
|
|
* @since Version 3.0.0
|
|
* @filesource
|
|
*/
|
|
defined('BASEPATH') OR exit('No direct script access allowed');
|
|
|
|
/**
|
|
* PDO Firebird Database Adapter Class
|
|
*
|
|
* Note: _DB is an extender class that the app controller
|
|
* creates dynamically based on whether the query builder
|
|
* class is being used or not.
|
|
*
|
|
* @package CodeIgniter
|
|
* @subpackage Drivers
|
|
* @category Database
|
|
* @author EllisLab Dev Team
|
|
* @link https://codeigniter.com/userguide3/database/
|
|
*/
|
|
class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver {
|
|
|
|
/**
|
|
* Sub-driver
|
|
*
|
|
* @var string
|
|
*/
|
|
public $subdriver = 'firebird';
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* ORDER BY random keyword
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $_random_keyword = array('RAND()', 'RAND()');
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Class constructor
|
|
*
|
|
* Builds the DSN if not already set.
|
|
*
|
|
* @param array $params
|
|
* @return void
|
|
*/
|
|
public function __construct($params)
|
|
{
|
|
parent::__construct($params);
|
|
|
|
if (empty($this->dsn))
|
|
{
|
|
$this->dsn = 'firebird:';
|
|
|
|
if ( ! empty($this->database))
|
|
{
|
|
$this->dsn .= 'dbname='.$this->database;
|
|
}
|
|
elseif ( ! empty($this->hostname))
|
|
{
|
|
$this->dsn .= 'dbname='.$this->hostname;
|
|
}
|
|
|
|
empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
|
|
empty($this->role) OR $this->dsn .= ';role='.$this->role;
|
|
}
|
|
elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 9) === FALSE)
|
|
{
|
|
$this->dsn .= ';charset='.$this->char_set;
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Show table query
|
|
*
|
|
* Generates a platform-specific query string so that the table names can be fetched
|
|
*
|
|
* @param bool $prefix_limit
|
|
* @return string
|
|
*/
|
|
protected function _list_tables($prefix_limit = FALSE)
|
|
{
|
|
$sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\'';
|
|
|
|
if ($prefix_limit === TRUE && $this->dbprefix !== '')
|
|
{
|
|
return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
|
|
.sprintf($this->_like_escape_str, $this->_like_escape_chr);
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Show column query
|
|
*
|
|
* Generates a platform-specific query string so that the column names can be fetched
|
|
*
|
|
* @param string $table
|
|
* @return string
|
|
*/
|
|
protected function _list_columns($table = '')
|
|
{
|
|
return 'SELECT "RDB$FIELD_NAME" FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns an object with field data
|
|
*
|
|
* @param string $table
|
|
* @return array
|
|
*/
|
|
public function field_data($table)
|
|
{
|
|
$sql = 'SELECT "rfields"."RDB$FIELD_NAME" AS "name",
|
|
CASE "fields"."RDB$FIELD_TYPE"
|
|
WHEN 7 THEN \'SMALLINT\'
|
|
WHEN 8 THEN \'INTEGER\'
|
|
WHEN 9 THEN \'QUAD\'
|
|
WHEN 10 THEN \'FLOAT\'
|
|
WHEN 11 THEN \'DFLOAT\'
|
|
WHEN 12 THEN \'DATE\'
|
|
WHEN 13 THEN \'TIME\'
|
|
WHEN 14 THEN \'CHAR\'
|
|
WHEN 16 THEN \'INT64\'
|
|
WHEN 27 THEN \'DOUBLE\'
|
|
WHEN 35 THEN \'TIMESTAMP\'
|
|
WHEN 37 THEN \'VARCHAR\'
|
|
WHEN 40 THEN \'CSTRING\'
|
|
WHEN 261 THEN \'BLOB\'
|
|
ELSE NULL
|
|
END AS "type",
|
|
"fields"."RDB$FIELD_LENGTH" AS "max_length",
|
|
"rfields"."RDB$DEFAULT_VALUE" AS "default"
|
|
FROM "RDB$RELATION_FIELDS" "rfields"
|
|
JOIN "RDB$FIELDS" "fields" ON "rfields"."RDB$FIELD_SOURCE" = "fields"."RDB$FIELD_NAME"
|
|
WHERE "rfields"."RDB$RELATION_NAME" = '.$this->escape($table).'
|
|
ORDER BY "rfields"."RDB$FIELD_POSITION"';
|
|
|
|
return (($query = $this->query($sql)) !== FALSE)
|
|
? $query->result_object()
|
|
: FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Update statement
|
|
*
|
|
* Generates a platform-specific update string from the supplied data
|
|
*
|
|
* @param string $table
|
|
* @param array $values
|
|
* @return string
|
|
*/
|
|
protected function _update($table, $values)
|
|
{
|
|
$this->qb_limit = FALSE;
|
|
return parent::_update($table, $values);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Truncate statement
|
|
*
|
|
* Generates a platform-specific truncate string from the supplied data
|
|
*
|
|
* If the database does not support the TRUNCATE statement,
|
|
* then this method maps to 'DELETE FROM table'
|
|
*
|
|
* @param string $table
|
|
* @return string
|
|
*/
|
|
protected function _truncate($table)
|
|
{
|
|
return 'DELETE FROM '.$table;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Delete statement
|
|
*
|
|
* Generates a platform-specific delete string from the supplied data
|
|
*
|
|
* @param string $table
|
|
* @return string
|
|
*/
|
|
protected function _delete($table)
|
|
{
|
|
$this->qb_limit = FALSE;
|
|
return parent::_delete($table);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* LIMIT
|
|
*
|
|
* Generates a platform-specific LIMIT clause
|
|
*
|
|
* @param string $sql SQL Query
|
|
* @return string
|
|
*/
|
|
protected function _limit($sql)
|
|
{
|
|
// Limit clause depends on if Interbase or Firebird
|
|
if (stripos($this->version(), 'firebird') !== FALSE)
|
|
{
|
|
$select = 'FIRST '.$this->qb_limit
|
|
.($this->qb_offset > 0 ? ' SKIP '.$this->qb_offset : '');
|
|
}
|
|
else
|
|
{
|
|
$select = 'ROWS '
|
|
.($this->qb_offset > 0 ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit);
|
|
}
|
|
|
|
return preg_replace('`SELECT`i', 'SELECT '.$select, $sql);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Insert batch statement
|
|
*
|
|
* Generates a platform-specific insert string from the supplied data.
|
|
*
|
|
* @param string $table Table name
|
|
* @param array $keys INSERT keys
|
|
* @param array $values INSERT values
|
|
* @return string|bool
|
|
*/
|
|
protected function _insert_batch($table, $keys, $values)
|
|
{
|
|
return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE;
|
|
}
|
|
}
|